Who was the Chairman of the University Education Commission of 1948?

The correct option is S. Radhakrishnan.

Detailed Explanation:
The University Education Commission was set up by the Government of India in November 1948, shortly after India gained independence. The primary objective of the commission was to inquire into the state of university education in India and recommend improvements to align it with the country's future needs.
Dr. Sarvepalli Radhakrishnan, a distinguished philosopher, scholar, and diplomat (who later served as the first Vice-President and the second President of India), was appointed as the Chairman of this commission. Consequently, the commission is also widely referred to as the Radhakrishnan Commission.
The commission submitted its comprehensive report in August 1949, proposing vital reforms in the aims of education, teaching standards, research, course structures, and university administration, which laid the foundation for the modern higher education system in India.